Mitutoyo 543-342B-10 Electronic Drop Indicator 0.5 in

Product Description

The MITUTOYO 543-342B-10 is a digital electronic drop indicator designed for precise dimensional measurement in machining, quality control, and inspection applications. It uses an LCD display to deliver readings in both inch and metric units, with a resolution of 0.0001 inch (0.0030 mm) and an accuracy of 0.000120 inch. The flat back and straight connection type suit standard indicator holders and magnetic base setups. A carbide contact point provides wear resistance for repeated surface contact. Battery power comes from an included CR2032 cell. This instrument is typically used by machinists, quality technicians, and tool-and-die professionals.

The 543-342B-10 covers a measurement range of 0 to 0.5000 inch (0 to 12.70 mm) with a measuring force of 1.5 N. It is suited for use on surface plates, mill tables, lathe setups, and CMM fixturing where a drop-style indicator is preferred over a side-reading dial type. The ABS (Absolute) scale function automatically restores the last origin position when the unit is powered on, eliminating the need to re-zero after a battery change or accidental shutdown. Five front-panel buttons with status icons and clear labeling allow straightforward function access during use.

Key Features

• ABS (Absolute) scale automatically restores the last origin position on power-up for reliable, repeatable zeroing
• Dual-unit readout switchable between inch and metric on the LCD display
• Resolution of 0.0001 inch (0.0030 mm) and accuracy of 0.000120 inch
• Carbide contact point for extended wear life under frequent surface contact
• Flat back and straight connection type compatible with standard dovetail clamp holders
• Five-button interface with status icons for easy single-hand operation
• CR2032 battery included; battery-powered with no external power required

Compatibility

Designed as an OEM-style drop indicator compatible with standard dovetail-style indicator holders and magnetic base assemblies used in general metrology and machine shop inspection setups.

Installation Notes

Installation is performed by qualified machinists or metrology technicians using a compatible dovetail clamp or stem holder. Ensure the indicator stem is fully seated and the clamp screw is snug before taking measurements. Do not overtighten the clamp on the indicator body, as this can affect spindle movement and measurement accuracy. Handle the contact point and spindle with care to avoid impact damage that would alter calibration.